ZIP code
61104
Rockford, IL
61104 covers Rockford in Winnebago County, with 17,584 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 61104. Methodology
ZIP code map of 61104

About ZIP code 61104
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 61104. Not ACS. Methodology
People in 61104
Race
- White7,041
- Black or African American4,962
- American Indian or Alaska Native191
- Asian853
- Native Hawaiian and Pacific Islander2
- Other race2,162
- Two or more races2,143
Hispanic or Latino (any race): 4,396
Age
- Under 102,842
- 10 to 192,622
- 20 to 292,745
- 30 to 392,354
- 40 to 492,132
- 50 to 592,064
- 60 to 691,610
- 70 to 79708
- 80 and older277
Income and housing in 61104
Education
- High school graduate74.7%
- Bachelor's degree9.1%
- Graduate degree2.9%
Places covering 61104
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Rockford100.0%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Winnebago County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Population history for 61104
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 16,045 | |
| 2006 | 16,518 | |
| 2007 | 17,640 | |
| 2008 | 16,400 | |
| 2009 | 16,378 | |
| 2010 | 16,353 | |
| 2011 | 17,346 | 16,071 |
| 2012 | 17,936 | 15,740 |
| 2013 | 18,345 | 15,630 |
| 2014 | 18,694 | 15,430 |
| 2015 | 18,982 | 15,190 |
| 2016 | 19,622 | 14,360 |
| 2017 | 19,554 | 14,110 |
| 2018 | 19,454 | 13,410 |
| 2019 | 19,492 | 13,210 |
| 2020 | 18,886 | 12,890 |
| 2021 | 19,106 | 12,560 |
| 2022 | 18,306 | 12,670 |
| 2023 | 17,584 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 61104
12 nearest ZIP centroids (any distance)
- 61108Rockford4.0 miPop 30,202 · Income $63,046
- 61109Rockford4.4 miPop 26,714 · Income $61,702
- 61102Rockford4.5 miPop 16,620 · Income $42,506
- 61107Rockford4.6 miPop 29,473 · Income $75,492
- 61112Rockford5.4 miPop 116 · Income —
- 61114Rockford5.9 miPop 15,026 · Income $83,472
- 61103Rockford6.1 miPop 23,238 · Income $47,390
- 61111Loves Park7.0 miPop 22,838 · Income $58,391
- 61101Rockford7.3 miPop 19,671 · Income $45,260
- 61016Cherry Valley7.7 miPop 5,166 · Income $92,865
- 61115Machesney Park8.2 miPop 22,424 · Income $73,771
- 61088Winnebago9.4 miPop 5,992 · Income $94,286
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 61104, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 61104 FAQ
- What city is ZIP code 61104 in?
- 61104 is in Rockford, IL.
- What county is 61104 in?
- 61104 is in Winnebago County.
- What is the median household income in 61104?
- The median household income in 61104 is $32,161.
- Which ZIP codes are near 61104?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 61104.